diff --git a/MusicBox/Main/AppDelegate.swift b/MusicBox/Main/AppDelegate.swift
index 34e34ec..60f9499 100755
--- a/MusicBox/Main/AppDelegate.swift
+++ b/MusicBox/Main/AppDelegate.swift
@@ -53,6 +53,9 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
         Database.database().isPersistenceEnabled = false
         GADMobileAds.sharedInstance().start(completionHandler: nil)
         
+        // 광고 최대 연령 조정
+        GADMobileAds.sharedInstance().requestConfiguration.maxAdContentRating = .teen
+        
         // 앱을 출시하기 전에 이러한 테스트 기기를 설정하는 코드를 반드시 삭제하세요.
         // GADMobileAds.sharedInstance().requestConfiguration.testDeviceIdentifiers = ["2077ef9a63d2b398840261c8221a0c9b"]
         
diff --git a/MusicBox/ViewController/common/FXSound.swift b/MusicBox/ViewController/Common/FXSound.swift
similarity index 100%
rename from MusicBox/ViewController/common/FXSound.swift
rename to MusicBox/ViewController/Common/FXSound.swift
diff --git a/MusicBox/ViewController/common/LoadMusicboxFileList.swift b/MusicBox/ViewController/Common/LoadMusicboxFileList.swift
similarity index 100%
rename from MusicBox/ViewController/common/LoadMusicboxFileList.swift
rename to MusicBox/ViewController/Common/LoadMusicboxFileList.swift
diff --git a/MusicBox/ViewController/FileCollectionViewController.swift b/MusicBox/ViewController/FileCollectionViewController.swift
index 67984f3..66c6c66 100755
--- a/MusicBox/ViewController/FileCollectionViewController.swift
+++ b/MusicBox/ViewController/FileCollectionViewController.swift
@@ -38,7 +38,7 @@ class FileCollectionViewController: UICollectionViewController {
     override func viewDidLoad() {
         super.viewDidLoad()
         
-        prepareAndShowFullScreenAd()
+        // prepareAndShowFullScreenAd()
         askPhotoAuth()
         
         setMenuDropDown()
diff --git a/MusicBox/ViewController/MusicPaperViewController.swift b/MusicBox/ViewController/MusicPaperViewController.swift
index 5a09f44..b462180 100755
--- a/MusicBox/ViewController/MusicPaperViewController.swift
+++ b/MusicBox/ViewController/MusicPaperViewController.swift
@@ -992,6 +992,35 @@ extension MusicPaperViewController: GADFullScreenContentDelegate {
         }
         
         let request = GADRequest()
+        request.keywords = [
+            "음악",
+            "악기",
+            "Music",
+            "instrument",
+            "score",
+            "sheet",
+            "piano",
+            "roll",
+            "노래",
+            "song",
+            "classical",
+            "클래식",
+            "유아",
+            "청소년",
+            "학습",
+            "공부",
+            "musical",
+            "연주",
+            "performance",
+            "칼림바",
+            "kalimba",
+            "커뮤니티",
+            "온라인",
+            "트럼펫",
+            "학원",
+            "academy"
+        ]
+        
         GADInterstitialAd.load(withAdUnitID: AdInfo.shared.paperFullScreen,
                                request: request,
                                completionHandler: { [self] ad, error in
diff --git a/MusicBox/ViewController/online_community/ArchiveNavigationController.swift b/MusicBox/ViewController/OnlineCommunity/ArchiveNavigationController.swift
similarity index 100%
rename from MusicBox/ViewController/online_community/ArchiveNavigationController.swift
rename to MusicBox/ViewController/OnlineCommunity/ArchiveNavigationController.swift
diff --git a/MusicBox/ViewController/online_community/AuthNavigationController.swift b/MusicBox/ViewController/OnlineCommunity/AuthNavigationController.swift
similarity index 100%
rename from MusicBox/ViewController/online_community/AuthNavigationController.swift
rename to MusicBox/ViewController/OnlineCommunity/AuthNavigationController.swift
diff --git a/MusicBox/ViewController/online_community/MemberProfileViewController.swift b/MusicBox/ViewController/OnlineCommunity/MemberProfileViewController.swift
similarity index 100%
rename from MusicBox/ViewController/online_community/MemberProfileViewController.swift
rename to MusicBox/ViewController/OnlineCommunity/MemberProfileViewController.swift
diff --git a/MusicBox/ViewController/online_community/NotConnectedViewController.swift b/MusicBox/ViewController/OnlineCommunity/NotConnectedViewController.swift
similarity index 100%
rename from MusicBox/ViewController/online_community/NotConnectedViewController.swift
rename to MusicBox/ViewController/OnlineCommunity/NotConnectedViewController.swift
diff --git a/MusicBox/ViewController/online_community/PostPageViewController.swift b/MusicBox/ViewController/OnlineCommunity/PostPageViewController.swift
similarity index 100%
rename from MusicBox/ViewController/online_community/PostPageViewController.swift
rename to MusicBox/ViewController/OnlineCommunity/PostPageViewController.swift
diff --git a/MusicBox/ViewController/online_community/PostViewController.swift b/MusicBox/ViewController/OnlineCommunity/PostViewController.swift
similarity index 89%
rename from MusicBox/ViewController/online_community/PostViewController.swift
rename to MusicBox/ViewController/OnlineCommunity/PostViewController.swift
index 1de5d38..6c1ae91 100755
--- a/MusicBox/ViewController/online_community/PostViewController.swift
+++ b/MusicBox/ViewController/OnlineCommunity/PostViewController.swift
@@ -13,6 +13,7 @@ import GoogleMobileAds
 import Lottie
 
 class PostViewController: UIViewController {
+    private var interstitial: GADInterstitialAd?
     
     lazy var lottieView: LottieAnimationView = {
         let animationView = LottieAnimationView(name: "129574-ginger-bread-socks-christmas")
@@ -149,6 +150,8 @@ class PostViewController: UIViewController {
         }
         
         SwiftSpinner.hide()
+        
+        prepareFullScreenAd()
     }
     
     override func viewWillAppear(_ animated: Bool) {
@@ -176,6 +179,12 @@ class PostViewController: UIViewController {
         bannerView?.fitInView(self)
     }
     
+    override func willMove(toParent parent: UIViewController?) {
+        if AdManager.isReallyShowAd, let interstitial {
+            interstitial.present(fromRootViewController: self)
+        }
+    }
+    
     override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
         if segue.identifier == "UpdatePostSegue" {
             let updateVC = segue.destination as? UpdatePostViewController
@@ -379,3 +388,55 @@ extension PostViewController: GADBannerViewDelegate {
         }
     }
 }
+
+extension PostViewController: GADFullScreenContentDelegate {
+    /// 전면 광고 준비
+    func prepareFullScreenAd() {
+        guard AdManager.isReallyShowAd else {
+            return
+        }
+        
+        let request = GADRequest()
+        request.keywords = [
+            "음악", 
+            "악기",
+            "Music",
+            "instrument",
+            "score",
+            "sheet",
+            "piano",
+            "roll",
+            "노래", 
+            "song",
+            "classical",
+            "클래식",
+            "유아",
+            "청소년",
+            "학습",
+            "공부",
+            "musical",
+            "연주",
+            "performance",
+            "칼림바",
+            "kalimba",
+            "커뮤니티",
+            "온라인",
+            "트럼펫",
+            "학원",
+            "academy"
+        ]
+        
+        GADInterstitialAd.load(withAdUnitID: AdInfo.shared.paperFullScreen,
+                               request: request,
+                               completionHandler: { [self] ad, error in
+                if let error = error {
+                    print("Failed to load interstitial ad with error: \(error.localizedDescription)")
+                    return
+                }
+            
+                interstitial = ad
+                interstitial?.fullScreenContentDelegate = self
+            }
+        )
+    }
+}
diff --git a/MusicBox/ViewController/online_community/SelectAFileViewController.swift b/MusicBox/ViewController/OnlineCommunity/SelectAFileViewController.swift
similarity index 100%
rename from MusicBox/ViewController/online_community/SelectAFileViewController.swift
rename to MusicBox/ViewController/OnlineCommunity/SelectAFileViewController.swift
diff --git a/MusicBox/ViewController/online_community/SignInViewController.swift b/MusicBox/ViewController/OnlineCommunity/SignInViewController.swift
similarity index 100%
rename from MusicBox/ViewController/online_community/SignInViewController.swift
rename to MusicBox/ViewController/OnlineCommunity/SignInViewController.swift
diff --git a/MusicBox/ViewController/online_community/SignUpTableViewController.swift b/MusicBox/ViewController/OnlineCommunity/SignUpTableViewController.swift
similarity index 100%
rename from MusicBox/ViewController/online_community/SignUpTableViewController.swift
rename to MusicBox/ViewController/OnlineCommunity/SignUpTableViewController.swift
diff --git a/MusicBox/ViewController/online_community/UpdatePostViewController.swift b/MusicBox/ViewController/OnlineCommunity/UpdatePostViewController.swift
similarity index 100%
rename from MusicBox/ViewController/online_community/UpdatePostViewController.swift
rename to MusicBox/ViewController/OnlineCommunity/UpdatePostViewController.swift
diff --git a/MusicBox/ViewController/online_community/UploadFormViewController.swift b/MusicBox/ViewController/OnlineCommunity/UploadFormViewController.swift
similarity index 100%
rename from MusicBox/ViewController/online_community/UploadFormViewController.swift
rename to MusicBox/ViewController/OnlineCommunity/UploadFormViewController.swift
diff --git a/MusicBox/ViewController/online_community/UserCommunityViewController.swift b/MusicBox/ViewController/OnlineCommunity/UserCommunityViewController.swift
similarity index 100%
rename from MusicBox/ViewController/online_community/UserCommunityViewController.swift
rename to MusicBox/ViewController/OnlineCommunity/UserCommunityViewController.swift
diff --git a/MusicBox/ViewController/online_community/YouNeedLoginViewController.swift b/MusicBox/ViewController/OnlineCommunity/YouNeedLoginViewController.swift
similarity index 100%
rename from MusicBox/ViewController/online_community/YouNeedLoginViewController.swift
rename to MusicBox/ViewController/OnlineCommunity/YouNeedLoginViewController.swift
diff --git a/MusicBox/ViewController/settings/AppExhibitionTableViewController.swift b/MusicBox/ViewController/Setting/AppExhibitionTableViewController.swift
similarity index 100%
rename from MusicBox/ViewController/settings/AppExhibitionTableViewController.swift
rename to MusicBox/ViewController/Setting/AppExhibitionTableViewController.swift
diff --git a/MusicBox/ViewController/settings/AudioMIDISettingTableViewController.swift b/MusicBox/ViewController/Setting/AudioMIDISettingTableViewController.swift
similarity index 100%
rename from MusicBox/ViewController/settings/AudioMIDISettingTableViewController.swift
rename to MusicBox/ViewController/Setting/AudioMIDISettingTableViewController.swift
diff --git a/MusicBox/ViewController/settings/SettingTableViewController.swift b/MusicBox/ViewController/Setting/SettingTableViewController.swift
similarity index 100%
rename from MusicBox/ViewController/settings/SettingTableViewController.swift
rename to MusicBox/ViewController/Setting/SettingTableViewController.swift
diff --git a/MusicBox/ViewController/settings/TextureCollectionViewController.swift b/MusicBox/ViewController/Setting/TextureCollectionViewController.swift
similarity index 100%
rename from MusicBox/ViewController/settings/TextureCollectionViewController.swift
rename to MusicBox/ViewController/Setting/TextureCollectionViewController.swift
diff --git a/MusicBox/ViewController/webkit/WebkitViewController.swift b/MusicBox/ViewController/WebKit/WebkitViewController.swift
similarity index 100%
rename from MusicBox/ViewController/webkit/WebkitViewController.swift
rename to MusicBox/ViewController/WebKit/WebkitViewController.swift